Σύγκριση μεθόδων

	Δοκιμή Jonckheere-Terpstra για Διατεταγμένες Εναλλακτικές	Συντελεστής Συσχέτισης Κατάταξης Spearman
Πεδίο	Στατιστική	Στατιστική
Οικογένεια	Hypothesis test	Hypothesis test
Έτος προέλευσης	1952	1904
Δημιουργός	A. R. Jonckheere and T. J. Terpstra	Charles Spearman
Τύπος	Nonparametric trend test	Nonparametric rank-based correlation
Θεμελιώδης πηγή	Jonckheere, A. R. (1954). A distribution-free k-sample test against ordered alternatives. Biometrika, 41(1-2), 133–145.	Spearman, C. (1904). The proof and measurement of association between two things. The American Journal of Psychology, 15, 72–101.
Εναλλακτικές ονομασίες	Jonckheere-Terpstra Testi, JT test, ordered k-sample test, trend test for ordered groups	Spearman's rho, Spearman rank-order correlation, Spearman Sıra Korelasyonu
Συναφείς	5	4
Σύνοψη	The Jonckheere-Terpstra test is a nonparametric hypothesis test that detects a monotone trend across k ordered groups — testing whether the outcome rises (or falls) systematically as the group order increases. Developed independently by T. J. Terpstra (1952) and A. R. Jonckheere (1954), it is the directional, ordered-alternative counterpart to the Kruskal-Wallis test.	The Spearman rank correlation coefficient (ρ) is a nonparametric measure of the monotonic association between two variables. Introduced by Charles Spearman in 1904, it converts raw observations to ranks and measures how consistently one variable increases as the other increases, without assuming a normal distribution or a linear relationship.